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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [N56VZ, Realtek ALC663, Black Headphone Out, Right] No sound from Subwoofer in 2.1 mode"
href="https://bugs.freedesktop.org/show_bug.cgi?id=91568#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [N56VZ, Realtek ALC663, Black Headphone Out, Right] No sound from Subwoofer in 2.1 mode"
href="https://bugs.freedesktop.org/show_bug.cgi?id=91568">bug 91568</a>
from <span class="vcard"><a class="email" href="mailto:superquad.vortex2@gmail.com" title="Raymond <superquad.vortex2@gmail.com>"> <span class="fn">Raymond</span></a>
</span></b>
<pre>
pulseaudio 6.0 is not enough as you need those lfe filter patches
you should find the following message in your pukseaudio log
pa_log_debug(" lfe filter activated (LR4 type), the crossover_freq = %uHz",
crossover_freq);
<a href="http://cgit.freedesktop.org/pulseaudio/pulseaudio/commit/?id=c36e191ce5d38173424c3db9ba06638fd6b8408e">http://cgit.freedesktop.org/pulseaudio/pulseaudio/commit/?id=c36e191ce5d38173424c3db9ba06638fd6b8408e</a></pre>
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